Time-Resolved CCD Photometry of the Optical Counterpart of Swift J2319.4+2619
ATel #1318; A. Shafter, E. Marin, and N. Sreenivasamurthy (SDSU)
on 4 Dec 2007; 04:45 UT
Credential Certification: Allen W. Shafter (aws@nova.sdsu.edu)
Subjects: Optical, Cataclysmic Variable
We report the results of time-resolved CCD photometry of the Swift
polar candidate recently identified by Mukai et al. (ATel#1309).
A five-hour time series of V-band photometry at ~1 min time resolution
was obtained with the Mount Laguna Observatory 1-m reflector
during the interval 2007 Dec. 03.08 - 03.29 UT. These data
reveal a strong, nearly sinusoidal modulation in the light curve
with a period of ~0.12 day, and a peak-to-peak amplitude of ~1 mag
(ranging from V~17.5 to V~16.5).
It is likely that the observed modulation reflects the orbital period
of the system, but time-resolved spectroscopic and/or polarimetric
observations will be required to confirm this possibility.
